USB: remove warn() macro from usb media drivers

USB should not be having it's own printk macros, so remove warn() and
use the system-wide standard of dev_warn() wherever possible.  In the
few places that will not work out, use a basic printk().

Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c
index 935d73d..210f124 100644
--- a/drivers/media/video/ov511.c
+++ b/drivers/media/video/ov511.c
@@ -1098,9 +1098,10 @@
 		reg_w(ov, R51x_SYS_SNAP, 0x02);
 		reg_w(ov, R51x_SYS_SNAP, 0x00);
 	} else if (ov->bclass == BCL_OV518) {
-		warn("snapshot reset not supported yet on OV518(+)");
+		dev_warn(&ov->dev->dev,
+			 "snapshot reset not supported yet on OV518(+)\n");
 	} else {
-		err("clear snap: invalid bridge type");
+		dev_err(&ov->dev->dev, "clear snap: invalid bridge type\n");
 	}
 }
 
@@ -1115,14 +1116,16 @@
 	if (ov->bclass == BCL_OV511) {
 		ret = reg_r(ov, R51x_SYS_SNAP);
 		if (ret < 0) {
-			err("Error checking snspshot status (%d)", ret);
+			dev_err(&ov->dev->dev,
+				"Error checking snspshot status (%d)\n", ret);
 		} else if (ret & 0x08) {
 			status = 1;
 		}
 	} else if (ov->bclass == BCL_OV518) {
-		warn("snapshot check not supported yet on OV518(+)");
+		dev_warn(&ov->dev->dev,
+			 "snapshot check not supported yet on OV518(+)\n");
 	} else {
-		err("check snap: invalid bridge type");
+		dev_err(&ov->dev->dev, "clear snap: invalid bridge type\n");
 	}
 
 	return status;
@@ -5217,7 +5220,8 @@
 	if (ov->bclass == BCL_OV511)
 		reg_w(ov, 0x11, 0x00);
 	else
-		warn("SAA7111A not yet supported with OV518/OV518+");
+		dev_warn(&ov->dev->dev,
+			 "SAA7111A not yet supported with OV518/OV518+\n");
 
 	return 0;
 }
@@ -5456,7 +5460,8 @@
 	 * required. OV518 has no uncompressed mode, to save RAM. */
 	if (!dumppix && !ov->compress) {
 		ov->compress = 1;
-		warn("Compression required with OV518...enabling");
+		dev_warn(&ov->dev->dev,
+			 "Compression required with OV518...enabling\n");
 	}
 
 	if (ov->bridge == BRG_OV518) {